2 in 1 – Cold forming and machining
GMAK – Yesterday and Today
1780 – foundation of Gebr. Tiefenthal, Wülfrath
2003 – Renaming to GMAK Kaltformteile GmbH & Co. limited partnership
2008 – Relocation to Wuppertal
2017 – Reorganization of the shareholder structure
2018 – Successful certification according to IATF 16949:2016
35 employees (thereof 23 in production)
15.000 m2 area, of which 5.000 m2 production area
Near-Net-Shape Production
Cold forming with multi-stage presses (up to 5 stages)
Pressing forces up to 1.300 kn
Material: Steel, stainless steel, non-ferrous metals
Wire diameter: 3 – 16 mm
Under head length: up to 130 mm
Head diameter: up to 30 mm
Material:
Steels from magnetically soft iron to high-grade structural steels, stainless and rust-resistant stainless steels, aluminium alloys, non-ferrous metals
Machining
Machining further processing such as
– Cutting internal thread
– Turning, drilling, milling etc.
Complex turning geometries via rotary indexing and cam-controlled automatic lathes
Further processing
Chipless further processing such as
– Thread and profile rolling
– Finest cleaning, vibratory finishing, sorting, packaging
Surface and heat treatment by external partners
The GMAK product portfolio
GMAK produces, using finite element simulations, bolts, rivets, hinge pins, screws, hollow and semi-hollow parts and other complex geometries according to customer drawings.
Flexibility meets experience and competence
GMAK customers work in the following areas
– Automotive and supply industry
– Mechanical and plant engineering
– Electrical engineering
– Plastics technology
– Building and furniture fittings
– Sport and leisure sector
GMAK combines the advantages of two technologies, cold forming and turning, – to produce to use saving potentials and
– develop the most economical solution.
What customers value about GMAK?
– Experience
– Modern finite simulation technology (2D and 3D)
– Speed
– Flexibility
Jürgen Gundermann
Management
Tel. +49 202 66931-600
info@gmak.de
Georg Marek
Production management
Tel. +49 202 66931-650
georg.marek@gmak.de
Lennart Sakuth
Head of Sales
Tel. +49 202 66931-637
lennart.sakuth@gmak.de
Michael Engelbrecht
Sales
Tel. +49 202 66931-635
michael.engelbrecht@gmak.de
Thorsten Kettner
Sales
Tel. +49 202 66931-636
thorsten.kettner@gmak.de
Harry Altena
Purchasing department
Tel. +49 202 66931-630
harry.altena@gmak.de
Ralf Gnoth
Construction department
Tel. +49 202 66931-640
ralf.gnoth@gmak.de
Martin Dreker
Accounting, Human Resources Management
Tel. +49 2351 5678-128
m.dreker@mn-kaltform.de
Elmar Warkentin
Quality assurance
Tel. +49 202 66931-665
elmar.warkentin@gmak.de
Ingo Hermanns
Logistics
Tel. +49 202 66931-670
ingo.hermanns@gmak.de